Steroid Hormones
Mostrando 1-12 de 321 artigos, teses e dissertações.
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1. MONITORING OF PROGESTERONE AND ESTRONE FECAL METABOLITES THROUGHOUT GESTATION IN EWES
Resumo O objetivo deste estudo foi monitorar os níveis de metabólitos fecais de progesterona e estrona ao longo da gestação em ovelhas, correlacionando-os com os níveis séricos desses hormônios esteroides. Assim, amostras de fezes e sangue foram colhidas de cinco ovelhas no período pré-cobertura e durante a gestação, até duas semanas após o part
Ciênc. anim. bras.. Publicado em: 13/12/2019
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2. Star anise extracts modulation of reproductive parameters, fertility potential and DNA fragmentation induced by growth promoter Equigan in rat testes
ABSTRACT Equigan is an anabolic steroid that has been developed for veterinary use and derived from endogenous sex hormone testosterone that plays a key role in the development of male reproductive tissue as well as in puberty and spermatogenesis. The current study is aimed to investigate the possible prophylactic effect of star anise extracts (SAE) on the t
Braz. J. Pharm. Sci.. Publicado em: 07/06/2018
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3. TSH-receptor antibodies may prevent bone loss in pre- and postmenopausal women with Graves' disease and Graves' orbitopathy
ABSTRACT Objective Thyrotoxicosis is established risk factor for osteoporosis due to increased bone turnover. Glucocorticoids often administered for Graves' orbitopathy (GO) have additional negative effect on bone mineral density (BMD). Our aim was to examine the influence of thyroid hormones, TSH, TSH-receptor antibodies (TRAb) and glucocorticoid treatment
Arch. Endocrinol. Metab.. Publicado em: 2018-03
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4. Expression of estrogen and progesterone receptors in astrocytomas: a literature review
Gliomas are the most common type of primary central nervous system neoplasm. Astrocytomas are the most prevalent type of glioma and these tumors may be influenced by sex steroid hormones. A literature review for the presence of estrogen and progesterone receptors in astrocytomas was conducted in the PubMed database using the following MeSH terms: “estrogen
Clinics. Publicado em: 2016-08
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5. Do steroid hormones have an important role on cutaneous lupus physiopathology?
An. Bras. Dermatol.. Publicado em: 2015-10
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6. Intrauterine sexual differentiation: biosyntesis and action of sexual steroid hormones
The objective of this review was to describe sexual differentiation events in mammals, relating them to biosynthesis of sexual steroid hormones and their mechanisms of action. Cholesterol is the precursor of sexual steroid hormone biosynthesis via action of several enzymes converting these hormones. Progestagens hormones serve as substrate for the production
Braz. arch. biol. technol.. Publicado em: 2015-06
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7. Estrogen and progesterone receptors in endometrial polyps of women exposed and not exposed to tamoxifen and in atrophic endometrium / Receptores de estrógeno e progesterona em pólipos endometriais de usuárias e não usuárias de tamoxifeno e no endométrio atrófico
Introduction: Tamoxifen has been used for the treatment of strogen receptor-positive breast cancer. The effect of tamoxifen in breast cancer is the it inhibition cancer cell growth by competitive antagonism with strogen for strogen receptor (ER). The mechanism of action of tamoxifen in this receptor varies among different tissues, with antagonist effect (e.g
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/02/2012
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8. Diretrizes para prevenção e tratamento da osteoporose induzida por glicocorticoide
Os glicocorticoides (GC) são prescritos por praticamente todas as especialidades médicas, e cerca de 0,5% da população geral do Reino Unido utiliza esses medicamentos. Com o aumento da sobrevida dos pacientes com doenças reumatológicas, a morbidade secundária ao uso dessa medicação representa um aspecto importante que deve ser considerado no manejo
Revista Brasileira de Reumatologia. Publicado em: 2012-08
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9. Controle hormonal da próstata feminina do gerbilo sob influência de múltiplas prenhezes e reposição hormonal / Hormonal control of the gerbil s female prostate : influence of multiple pregnancies and hormone replacement
The gerbil female prostate is located paraurethrally and has all the main histological components of the male prostate, like secretor epithelium and fibromuscular stroma. This gland, like the prostate in males, is targeted by testosterone action, which promotes morphofunctional development. Furthermore, estrogens are required to maintain the male and female
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/01/2011
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10. Caracterização estrutural e molecular da próstata de homens senis com e sem diagnóstico de doenças prostáticas / Structural and molecular characterization of elderly men´s prostate with and without diagnosis of prostatic lesions
A senescência é fator determinante para a ocorrência de alterações na biologia molecular da próstata, considerando-se tanto o desequilíbrio hormonal quanto o das interações epitélioestroma. Assim, os objetivos desse estudo foram caracterizar e comparar a biologia celular e molecular da zona periférica prostática de homens senis, com e sem diagnó
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/03/2010
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11. Expression of mdr isoforms in mice during estrous cycle and under hormone stimulation
The multidrug resistance (MDR) phenotype is associated with the expression of P-glycoprotein (Pgp), coded by the multigenic mdr family. Mice present the isoforms mdr1 and mdr3, which are responsible for multidrug resistance, and mdr2, that is involved in the transport of phospholipids. mdr1 expression has more recently been associated also with the secretion
Publicado em: 2010
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12. Desenvolvimento da próstata masculina e feminina do gerbilo da Mongólia submetido à exposição no período embriofetal e pós-natal de etinilestradiol / Development of male and female prostate of the Mongolian gerbil submitted to the exposure embryofetal period and postnatal ethinylestradiol
In males, prostatic morphogenesis is an event controlled by androgens, which act directly via paracrine factors secreted by the mesenchyme. In females, the embryological development of the prostate appears to occur in environment low levels of steroid hormones, but the presence of these hormones in the adult life induces differentiation and secretory activit
Publicado em: 2010